{"term":{"id":"10936","title":"menstrual cycle","longtitle":"IUPAC Gold Book - menstrual cycle","doi":"10.1351\/goldbook.10936","code":"10936","status":"current","definitions":[{"id":1,"text":"The period, normally lasting \\(\\pu{28 days}\\) in the human female, during which an ovum matures, is ovulated, and enters the uterus through the Fallopian tubes. If fertilization occurs, the cycle is interrupted by pregnancy; otherwise, the cycle ends with menstruation.","links":[{"term":"Fallopian tubes","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/10706"},{"term":"fertilization","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/10713"},{"term":"menstruation","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/10937"},{"term":"ovulated","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/11059"},{"term":"ovum","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/11060"},{"term":"pregnancy","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/11116"},{"term":"uterus","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/11350"}],"sources":["PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 777 (https:\/\/doi.org\/10.1515\/pac-2015-1202)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/10936\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/10936\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/10936\/plain"},"citation":"Citation: 'menstrual cycle' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351\/goldbook.10936","license":"The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/) for individual terms.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","disclaimer":"The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.","accessed":"2026-08-03T07:31:17+00:00"}}